Year	Percent
1991-01-01	1.0134200000000000
1992-01-01	1.0061400000000000
1993-01-01	1.1266200000000002
1994-01-01	1.1422500000000000
1995-01-01	1.2028900000000000
1996-01-01	1.1883400000000000
1997-01-01	1.1754300000000000
1998-01-01	1.1515600000000001
1999-01-01	1.1503800000000000
2000-01-01	1.2244300000000000
2001-01-01	1.1888600000000000
2002-01-01	1.3265400000000000
2003-01-01	1.3696400000000000
2004-01-01	1.3489100000000000
2005-01-01	1.2569000000000000
2006-01-01	1.3050500000000000
2007-01-01	1.2999399999999999
2008-01-01	1.2890200000000000
2009-01-01	1.2521900000000000
2010-01-01	1.2704100000000000
2011-01-01	1.4164700000000001
2012-01-01	1.4153600000000000
2013-01-01	1.4382500000000000
2014-01-01	1.2894299999999999
2015-01-01	1.3309400000000000